[Keyboard] Waterfowl keyboard support (#16760)

* Added waterfowl files

* Completing PR Checklist

* Added encoders to info.json

* Added license to default keymap

* Update keyboards/waterfowl/keymaps/cyanduck/keymap.c

* Update keyboards/waterfowl/keymaps/default/keymap.c

* Update keyboards/waterfowl/waterfowl.c

* Update keyboards/waterfowl/keymaps/default/keymap.c

* Update keyboards/waterfowl/waterfowl.c

* Update keyboards/waterfowl/waterfowl.c

* Update keyboards/waterfowl/keymaps/cyanduck/keymap.c

* Update keyboards/waterfowl/rules.mk

* Update readme.md

* Update keyboards/waterfowl/waterfowl.c

* Update keyboards/waterfowl/info.json

* Update keyboards/waterfowl/info.json

keyboards/waterfowl/readme.md

@@ -0,0 +1,21 @@
+# Waterfowl
+
+The Waterfowl is a 36-key split keyboard inspired by the Kyria and Arch-36.
+
+* Keyboard Maintainer: [CyanDuck](https://github.com/JW2586)
+* Hardware Supported: Pro Micro 5V/16MHz and compatible.
+
+Make example for this keyboard (after setting up your build environment):
+
+    make waterfowl:default
+
+Example of flashing this keyboard:
+
+    make waterfowl:default:flash
+
+Enter the bootloader by:
+- Press the key mapped to reset (bottom left key in FUNC layer/layer 3)
+- Press the reset button on the PCB
+- Connect GND and RST pins on pro micro
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).